Using kava to help people quit smoking and manage stress and sleep issues

The Potential of Kava in Enabling Tobacco Cessation - Its Holistic Effects in Managing Stress and Insomnia Associated With Abstinence

Phase 2 Interventional University of Florida · NCT05814055

This study is testing if taking kava can help people who smoke quit smoking while also reducing stress and improving sleep.

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment76 (estimated)
Ages21 Years to 75 Years
SexAll
SponsorUniversity of Florida Academic / other
Locations1 site (Gainesville, Florida)
Trial IDNCT05814055 on ClinicalTrials.gov

What this trial studies

This study evaluates how well active smokers comply with a daily kava regimen while intending to quit smoking. It investigates whether kava can aid in tobacco cessation, alleviate stress, and enhance sleep quality during the quitting process. Participants will be given either kava or a placebo to assess the effects of kava on their smoking cessation journey. The study aims to provide insights into the holistic benefits of kava in managing withdrawal symptoms associated with quitting smoking.

Who should consider this trial

Good fit: Ideal candidates are adults aged 21 and older who smoke at least 10 cigarettes a day and intend to quit.

Not a fit: Patients currently enrolled in smoking cessation programs or those who do not meet the smoking criteria may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide a natural alternative to support smoking cessation and improve overall well-being during the quitting process.

How similar studies have performed: While kava has been studied for its effects on anxiety and sleep, this specific approach to smoking cessation is novel and has not been extensively tested.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* adults aged 21 years or above (legal age for smoking in the U.S.) up to 75 years old;
* self-reported smoking at least 5 cigarettes/day for the past year with INTENTION to quit at time of screening visit;
* expired carbon monoxide level of more than 8 ppm at recruitment;
* willingness to participate in the proposed study, as indicated by signed informed consent;
* access to a functional telephone;
* expected presence in the study's geographical area for the next 4 months;
* not currently enrolled in any smoking cessation programs per self report; and
* female subjects of childbearing potential will be required to practice acceptable methods of birth control (the acceptable methods of birth control include birth control pills, Birth Control Shot, Birth Control Implant, IUD, Diaphragm, and cervical cap).
* if a participant takes kava dietary supplement, a 2-week washout period is needed for the participant to initiate this study or if a participant participated in a kava trial before, such as the kava JEK trial, the participant could be enrolled if the inclusion criteria above are met, including the 2-week washout period.

Exclusion Criteria:

* history of active cancer (other than non-melanoma skin cancer) within the past 2 years;
* diagnosed with liver dysfunction or with previous liver diseases;
* levels of alanine transaminase, aspartate transaminase, alkaline phosphatase or total bilirubin over limit of normal (ULN) range at prescreen;
* inability to refrain from acetaminophen, alcohol (no more than one drink daily via self-report), or other potentially hepatotoxic substances;
* are pregnant or nursing (lactating) or of childbearing age planning to become pregnant or unwilling to use adequate contraception during the study;
* participant answered "Yes" to any of the Modified Ask Suicide Screening Questions questions 1 through 3, or refuses to answer all of the questions. If subject answers 'Yes' to question 4 but the most recent suicide attempt took place \>12 months from screening visit then subject is still eligible.

Where this trial is running

Gainesville, Florida

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Smokingkavasmoking cessationtobacco dependence
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.